[An improved model of the CK-BO-4-M sigmoidoscope].
Nemirovskiĭ
M E
ME
Khokhlova
N M
NM
Dobrovol'skaia
M G
MG
Molev
A I
AI
Porozhniakov
A P
AP
Sorkin
E A
EA
Ponomarenko
A V
AV
D006801:Humans; D020694:Sigmoidoscopes
Usovershenstvovannaia model' sigmoidokolonoskopa CK-BO-4-M.